JP6445477B2 - Band fastener - Google Patents

Description

  The present invention includes a rotation lever that rotates while pulling a resin band in which a plurality of core wires are housed in a resin member, and a base portion that rotates and locks the rotation lever. The present invention relates to a band fastener used when a band is attached to a utility pole or used for packing.

  In recent years, a band made of polyester or stainless steel that hardly stretches is used to fix a cable, a conduit, a protective plate, or the like on a peripheral surface of a utility pole, or to attach a support bracket such as an advertisement or a street light. As such a band clamp, the other end of the band is locked to the base portion, and a rotation lever for band tightening is rotatably attached, and one end side of the band by the band winding shaft of the rotating rotation lever The band is attached to a utility pole or the like by applying a tensile force (tension) to the pulling band and locking the rotating lever to the base part with the pulling force applied to the band. With such a band clamp, the tension of the band gradually increases as the rotating lever is closed, and an excessive load is required at the time of final tightening. Therefore, any band with elasticity can be easily tightened without any problems. However, in the case of a band made of polyester or stainless steel having almost no elongation, a device for reducing an excessive load at the time of final tightening was required.

  Therefore, for example, a band tightening lever is attached to the main body of the band so as to be able to be tilted and a band insertion hole is formed near the base of the rotating lever. Then, the other end of the band, one end of which is connected and fixed to the clamp body, is passed through the band insertion hole with the pivot lever raised outward relative to the clamp body, and the pivot lever is tightened. In the band fastener that is configured to tighten the band by tilting to the tool body side, a guide hole for inserting the band into the band insertion hole is provided in the fastener body near the base of the rotating lever, and A band fastener that is configured so that a band insertion hole continuously communicates with the guide hole when the rotating lever is raised outward from the fastener body has been proposed and patented (for example, Patent Documents). 1).

Japanese Patent No. 3880657

  By the way, more recently, resin bands with multiple core wires that have almost no stretch of aramid fibers, glass fibers, steel wires (wires), etc. are used in resin members rather than stainless steel metal bands. Has been.

  However, in the conventional band fastener described above, [0017] of the specification states that “the protrusion 24 is provided at the base of the rotating lever 2 as shown in the drawing, that is, as shown in FIG. 5C, it is preferable to sandwich the band B between the protruding portion 24 and the bottom surface of the U-shaped body 1 as shown in FIG. In addition, as shown in the illustrated example, the protrusion 24 may be formed with an uneven strip 24a for preventing slippage in a direction perpendicular to the rotation direction (tilting direction) of the lever 2, so that the band is formed. As described above, the lever is prevented from slipping and can be fixed more securely. As described, the lever is perpendicular to the direction in which the lever is pivoted (inclined direction), that is, perpendicular to the longitudinal direction of the band. Because the non-slip ridges are formed The resin around the core wire when a resin band containing multiple core wires, such as aramid fiber, glass fiber, steel wire (wire), etc., with little elongation is passed through the lever and locked to the base (fully closed) In some cases, the member is broken, the resin member is separated from the core wire, and the broken resin member is detached from the core wire.

  Therefore, when the resin member is separated from the core wire, there is a problem that workability is poor because the lever must be fully opened again and tightened again through the band.

  In the conventional band fastener described above, when the band is passed through the fastener and then the lever is rotated, the band is wound around the band winding portion of the lever, and the band winding portion and base of the lever are wound. The band is clamped between the upper surface of the resin and the band is tightened. However, with this alone, there is a problem that the resin band may be loosened due to secular change or the like.

  Further, the conventional band fastener described above is provided with a so-called temporary fixing function that temporarily stops rotation of the band and the lever while the lever is moved from the fully open state to the fully closed state after passing the band through the lever. In this respect, there is also a problem that workability is not good.

  Therefore, the present invention has been made paying attention to the above problems. First, even if the resin band is strongly tightened, it is difficult to separate the core wire and the resin member constituting the resin band. Provides a band fastener that can improve the workability by adding a temporary fixing function to temporarily stop the rotation of the resin band and lever. The purpose is to do.

In order to solve the above-described problems, a band fastener according to the present invention includes a rotating lever that rotates while pulling a resin band that includes a plurality of core wires in a resin member, and rotates the rotating lever. A band fastening tool that fastens and attaches the resin band to an object such as a utility pole, and the turning lever is provided with a locking portion on the tip end side of the turning lever. On the other hand, a band winding portion and a rotation shaft portion are provided on the proximal end portion side of the rotation lever, and the band winding portion is provided with the band winding portion from the distal end side of the rotation lever. A band insertion hole through which one end of the resin band passes, and the resin is positioned when the rotation lever is rotated from the open state to the locked state, located on the distal end side of the rotation lever from the rotation center of the rotation shaft portion. The band is wound and pulled by pulling one end of the resin band. The base is provided with a band tension portion for applying a tensile force to the resin band, and a plurality of concave and convex portions extending in parallel to the longitudinal direction of the resin band at predetermined intervals. The part includes: a band locking part to which the other end of the resin band is locked; a rotation shaft support part that rotatably supports the rotation shaft part of the rotation lever; A locked portion that is locked by the locking portion, and an end portion on the band entrance side of the band insertion hole in the band winding portion that is opposite to the band pulling portion. Is characterized in that it protrudes from the end of the band tension portion toward the tip of the rotating lever .
Here, in the band winding portion, the upper side of the rotating lever in the wide open state is defined as the first band winding portion through the band insertion hole, and the lower side in the wide open state of the rotating lever is the second band winding. As a part, while providing the said uneven | corrugated strip part in the outer peripheral surface in a said 1st band winding part, it is an edge part by the side of the 1st band winding part at the band exit side of the said band insertion hole in the said band winding part The end of the band insertion hole is the end of the band insertion hole on the band outlet side, the end of the second band winding part, and the first band winding part side of the band insertion hole on the band inlet side. It is good to form at an acute angle rather than the edge part by the side of the said 2nd band winding part .
Further, the base portion is further formed to be recessed so as to allow the rotation of the band winding portion around which the resin band is wound, and to form a gap with the band winding portion. And a central opening is formed between the distal end side of the pivot lever and the band winding portion, and the center of the pivot lever is provided at the center of the pivot lever. A main bridge portion connected to both the left and right side surfaces is formed in the opening portion, and the main bridge portion and the band winding portion in the central opening portion are disposed on the band exit side of the winding portion turning recess in the base portion. A band bending clamping convex portion that projects from the first central opening portion between the attaching portion and the resin band is bent between the main bridge portion and the band winding portion may be formed. .
In addition, a base-side step is formed on the winding-part turning concave part of the band-bending sandwiching convex part, while the turning lever is rotated so that the locking part is located on the base part. A lever-side step portion is formed on the band winding portion that faces the base-side step portion of the convex portion for bending and holding the band when the locked portion is locked to the locked portion. In the locked state, the resin band may be sandwiched while being bent between the base side stepped portion and the lever side stepped portion.
Further, at the rear end portion of the base portion, when the rotation lever attached to the base portion is rotated, the engagement end separated from the band insertion hole in the band pulling portion of the band winding portion. When the state switching convex portion is provided on the band pulling portion side and the state switching convex portion is located on the band pulling portion side, the rotation lever is greatly opened with respect to the base portion. On the other hand, when the engaging lever moves over the state switching convex portion when the rotating lever rotates in the closing direction from the wide open state, the band outlet of the band insertion hole in the band winding portion You may comprise so that the said resin band may be temporarily fixed by pinching the said resin band between the edge part of a side, and the said convex part for band bending clamping of the said base part.
Further, the state switching convex portion is rotated when the rotation lever around which the resin band is wound is rotated so that the locking portion is locked to the locked portion of the base portion. Further, it is further preferable that the resin band is sandwiched between an end portion on the band exit side of the band insertion hole in the band winding portion and an end portion on the first band winding portion side.
In addition, the band fastener according to the present invention includes a rotation lever that rotates while pulling a resin band that includes a plurality of core wires in a resin member, and a base portion that rotates and locks the rotation lever. A band fastening tool for fastening and attaching the resin band to an object such as a utility pole, wherein the turning lever is provided with a locking portion on the tip end side of the turning lever, A band winding portion and a rotation shaft portion are provided on the base end side of the rotation lever, and one end of the resin band is connected to the band winding portion from the distal end side of the rotation lever. A band insertion hole through which the resin band is wound when the rotation lever is rotated from the open state to the locked state, located on the distal end side of the rotation lever from the rotation center of the rotation shaft portion. Pull on one end of the resin band to pull it A band tensioning portion for imparting a rotation of the resin band to the base portion, and a rotation portion of the rotation lever for rotating the rotation shaft portion of the rotation lever. A pivot shaft support portion that supports the pivot lever; and a latched portion that is latched by the latch portion of the pivot lever; and provided on the band entrance side of the band insertion hole in the band winding portion. An end portion that is opposite to the band tension portion protrudes toward the tip end side of the rotating lever from the end portion of the band tension portion.
Further, the band tension part is preferably formed in a shape in which the center part is recessed toward the rotation center side of the rotation shaft part than both sides in the width direction.

In the band fastener according to the present invention , the end of the band insertion portion on the band entrance side of the band insertion portion, which is opposite to the band tension portion, rotates more than the end of the band tension portion. Since it protrudes toward the tip of the lever, when one end of the resin band is inserted from the band entrance side of the band insertion hole of the band winding portion of the rotation lever, the tip of the resin band comes into contact with the band tension portion. Since the front end portion of the resin band is guided to the band entrance side of the band insertion hole, it can be surely and easily inserted into the band entrance side of the band insertion hole, and workability can be improved.

(A), (b) is a top view and a bottom view, respectively, of a band fastener (rotating lever is in a fully open state) according to an embodiment of the present invention. It is AA sectional view taken on the line in Fig.1 (a). (A), (b) is a front view and a rear view of a band fastener (rotating lever is in a fully open state) according to an embodiment of the present invention, respectively. It is a left side enlarged view of the band fastener (rotating lever is in a wide open state) according to the embodiment of the present invention. It is a right side enlarged view of a band fastener (rotating lever is in a fully open state) according to an embodiment of the present invention. (A), (b) is the top view and bottom view of a rotation lever which respectively comprise the band clamp of embodiment which concerns on this invention. It is the BB sectional view taken on the line in Fig.6 (a). (A), (b) is the left view and right view of the rotation lever which respectively comprise the band clamp of embodiment which concerns on this invention. (A), (b) is the top view of the base part which comprises the band clamp of embodiment which concerns on this invention, respectively, and a bottom view. It is CC sectional view taken on the line in Fig.9 (a). (A), (b) is the left view and right view of the rotation lever which respectively comprise the band clamp of embodiment which concerns on this invention. (A), (b) respectively, The state at the time of letting the end of the resin band pass to the entrance of the band insertion hole of the band winding part of the band clamp (rotation lever is in a fully open state) according to the embodiment of the present invention. It is sectional drawing shown and the principal part expanded sectional view. Sectional drawing which shows the state which penetrated the end of the resin band in the band insertion hole of the band winding part of the band clamp (rotation lever is a full open state) of embodiment which concerns on (a) and (b), respectively. It is a principal part expanded sectional view. (A) and (b) respectively, after passing through one end of the resin band through the band insertion hole of the band winding portion, the end of the band pulling portion of the rotating lever is engaged by rotating in the direction of closing the rotating lever. FIG. 3 is a cross-sectional view showing a state where the resin band is temporarily fixed by overcoming the state switching convex portion, and an enlarged cross-sectional view of the main part. (A) and (b) respectively, after passing through one end of the resin band through the band insertion hole of the band winding portion, the rotation lever is rotated in the closing direction so that the locking portion at the tip of the rotation lever is the base portion It is sectional drawing which shows the locked state which latched to the to-be-latched part and the rotation lever closed completely, and is principal part expanded sectional drawing. (A) and (b) respectively, after passing through one end of the resin band through the band insertion hole of the band winding portion, the rotation lever is rotated in the closing direction so that the locking portion at the tip of the rotation lever is the base portion It is the front view which shows the locked state which latched to the to-be-latched part and the rotation lever closed completely, and is DD sectional view taken on the line in Fig.16 (a). (A) and (b) respectively, the rotating lever of the band winding portion is rotated in the closing direction, the locking portion at the tip of the rotating lever is locked to the locked portion of the base portion, and the rotating lever is It is a front view which shows the locked state completely closed, and is the DD sectional view taken on the line in Fig.17 (a).

  Hereinafter, embodiments of a band fastener according to the present invention will be described with reference to the drawings. The embodiment described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and can be appropriately changed within the scope of the technical idea of the present invention.

  The band fastener 1 of the present embodiment is made of synthetic resin or the like, and as shown in FIGS. 1 to 5, is composed of a rotating lever 11 and a base portion 12, and is shown in FIGS. 12 to 16. Thus, it is used when the resin band 2 is fastened to the object such as the utility pole 3.

  As shown in FIG. 16B, the resin band 2 has almost no elongation of aramid fiber, glass fiber, wire (steel wire), etc. in the resin member 2a made of soft synthetic resin such as polyvinyl chloride (PVC). It is a band in which a plurality of core wires 2b having large tensile strength are incorporated.

<Configuration of rotating lever 11>
As shown in FIGS. 1 to 8 and the like, the rotation lever 11 has a band winding portion 11a and rotation shaft portions 11b1 and 11b2 on the base end side, and locking portions 11c and 11c on the tip end side. It has a tongue portion 11d and rotates about 180 degrees from the wide open state shown in FIG. 1 to FIG. 5 by turning around the turning shaft portions 11b1 and 11b2, and locks (closed) shown in FIG. ) State.

  In the wide open state, there may be a state in which the rotation lever 11 is opened to the maximum of about 180 degrees with respect to the base portion 12 and a play in which the rotation lever 11 is rotated by a slight angle from the maximum opened state.

  The band winding portion 11a is provided with a band insertion hole 11a1 through which one end of the resin band 2 passes. The width and the vertical width of the band insertion hole 11a1 are the horizontal and vertical widths of the cross section of the resin band 2, respectively. It is a little larger and secures a size that allows the resin band 2 to be inserted smoothly.

  It should be noted that the upper side in the fully opened state of the rotating lever 11, that is, the upper side in FIGS. 6 to 8 is the lower side in the fully opened state of the first band winding portion 11 a 2 and the rotating lever 11, that is, FIG. The lower side in FIG. 8 is referred to as a second band winding portion 11a3.

  The first band winding portion 11a2 of the band winding portion 11a includes a plurality of concave strip portions 11a21b and convex strip portions with respect to the longitudinal direction of the resin band 2, as shown in FIG. Concave and convex portions 11a21 that 11a21a extend in parallel at a predetermined interval are provided.

  Thereby, when the rotation lever 11 is closed by the concave and convex portion 11a21 of the first band winding portion 11a2, the resin band 2 is pulled by the band tension portion 11a31, and a large tensile force acts on the resin band 2, and the resin The band 2 is pressed against the ridges 11a21.

  Therefore, when the resin band 2 is passed through the rotation lever 11 to be locked (fully closed) with respect to the base portion 21, the resin band 2 is pressed by the concavo-convex ridge portion 11a21 to form the concavo-convex shape of the concavo-convex portion 11a21. Since it is deformed, the resin member 2a around the core wire 2b sandwiches or bonds the core wire 2b more firmly.

  As a result, even if the resin band 2 is strongly sandwiched between the protruding portion 11a21a of the rotating lever 11 and the winding portion rotating recess 12d of the base portion 12, the resin member 2a around the core wire 2b is cut off. Separation of the resin member 2a from the core wire 2b can be prevented and the band tightening operation is reduced again, so that workability can be improved.

  Moreover, as shown in FIG.7 (b) etc., the band exit side edge part 11a22 of the 1st band winding part 11a2 in which the uneven | corrugated strip part 11a21 was formed is the band entrance side edge part of the 1st band winding part 11a2. 11a23 and the band exit side end 11a32 and the band entrance side end 11a33 of the second band winding portion 11a3 are formed at an acute angle.

  Further, the band entrance side end portion 11a23 of the first band winding portion 11a2 is more pivotal than the band entrance side end portion 11a33 of the second band winding portion 11a3 as shown in FIGS. 7 (a) and 7 (b). 11 is projected to the tip side.

  Further, on the distal end side of the rotation lever 11 in the second band winding portion 11a3, the band tension portion is slidably contacted with the resin band 2 when the rotation lever 11 is rotated from the open state to the locked state. A band pulling portion 11 a 31 is provided that moves to the distal end side of the rotating lever 11 and pulls one end of the resin band 2.

  Here, as shown in FIG. 6B and the like, the band pulling portion 11a31 has both sides from the center in the width direction (the short direction of the turning lever 11 or the turning shaft direction of the turning shaft portions 11b1 and 11b2). Is formed in a curved shape in plan view so as to be positioned on the tip end side of the rotation lever 11 as it goes to the position, that is, the center in the width direction is positioned on the rotation axis side of the rotation shaft portions 11b1 and 11b2 from both sides. ing. However, in this invention, this band tension | pulling part 11a31 does not need to be formed in the planar view curved shape, The planar view curved shape is arbitrary shapes, A planar view linear shape may be sufficient, and it is not restricted to a planar view curved shape. Alternatively, it may be formed in a V shape in plan view.

  Further, the rotation shaft portions 11b1 and 11b2 of the rotation lever 11 have the outer diameter r1 of the rotation shaft portion 11f1 smaller than the outer diameter r2 of the rotation shaft portion 11f2, as shown in FIGS. By changing the outer diameter on the left and right sides, it is possible to reliably prevent the rotating part 11 from being attached to the base part 12 by mistake. Therefore, the inner diameters of the bearing holes 12a11 and 12a21 of the rotation shaft support portions 12a1 and 12a2 of the base portion 12 into which the rotation shaft portions 11b1 and 11b2 of the rotation lever 11 are fitted also depend on the outer diameters of the rotation shaft portions 11b1 and 11b2. The size has been changed.

  Further, as described above, the locking portions 11c and 11c and the tongue piece portion 11d are provided on the distal end side of the rotating lever 11.

  The locking portions 11 c and 11 c are provided so as to protrude laterally from the side surface of the tip of the rotating lever 11 and are locked in the locked holes 12 b 1 and 12 b 1 of the base portion 12.

  Here, the locking portions 11c and 11c are locked to the locked slope portions 12b11 and 12b11 of the locked holes 12b1 and 12b1 of the base portion 12 as shown in FIG. When the rotating lever 11 is closed to the base portion 12 as described above, the locking slope portions 11c1 and 11c1 that are inclined so as to gradually rise from the inside toward the outside, and the locking portions 11c and 11c are locked. Guide slope portions 11c2 and 11c2 that are inclined with respect to the slope portions 11c1 and 11c1 for locking are provided so as to be easily locked in the holes 12b1 and 12b1.

  Therefore, when the rotating lever 11 is closed to the locked (fully closed) state, the locking portions 11c and 11c are locked by the locking inclined surfaces 11c1 and 11c1 of the locking portions 11c and 11c. , 12b1, and the locking lever 11c1, 11c1 inclined so that the locking portions 11c, 11c gradually rise after the rotation lever 11 is closed to the locked (fully closed) state. However, since it is latched by the to-be-latched slope parts 12b11 and 12b11 of the to-be-latched parts 12b and 12b of the base part 12, respectively, a locked state can be maintained reliably. That is, the locking portions 11c and 11c are configured in a shape that is easy to close and difficult to remove. The shapes of the locking portions 11c and 11c and the locked hole 12b1 may be arbitrary.

  As shown in FIGS. 7A and 7B, the tongue portion 11d of the rotating lever 11 protrudes upward from the upper surface of the rotating lever 11 main body. Thereby, when one end of the resin band 2 reaches from the band winding part 11a of the rotating lever 11 to the tongue piece part 11d, the tongue piece part 11d presses one end of the resin band 2 from above. Along with the electric pole 3 etc., it is prevented from floating from the electric pole 3 etc. In particular, since the tongue piece 11d is formed to be curved as shown in FIGS. 3B and 4A, one end of the resin band 2 is moved downward along the outer peripheral surface of the utility pole 3. It can be bent smoothly.

  Further, when releasing the rotating lever 11 in the locked state, the rotating lever 11 can be lifted by inserting a screwdriver (not shown) having a tapered tip into the tongue piece portion 11d. In the present invention, providing the tongue piece 11d at the tip of the rotating lever 11 is optional and may be omitted.

  In addition, a central opening 11e having a large opening is formed between the distal end of the rotating lever 11 and the band winding portion 11a in order to reduce the weight of the rotating lever 11 and to suppress raw material costs. The central opening 11e is separated by a predetermined distance so as to be divided into three parts, a first central opening 11e1, a second central opening 11e2, and a third central opening 11e3, that is, two bridge parts, that is, a main bridge part 11f1 and a fork. A bridge portion 11f2 is provided to be connected to the left and right side surfaces.

  As will be described later, the main bridge portion 11f1 is a first central opening between the band bending clamping convex portion and the band winding portion 11a provided on the band exit side of the winding portion turning concave portion 12d in the base portion 12. It protrudes to 11e1 and is clamped, bending the resin band 2 between the convex part for band bending clamping, the main bridge part 11f1, and the band winding part 11a.

  As a result, the resin band 2 can be more securely tightened compared to the case where the main bridge portion 11f1 is not provided, and workability can be improved.

  Further, as shown in FIGS. 2, 4, 5, 6, and the like, a bulging portion 11 g with the center of the upper surface rising from both sides is provided at the tip of the rotating lever 11.

Thereby, compared with the case where the bulging part 11g is not provided, the front end part of the rotating lever 11 is pressed more strongly, and the engaging parts 11c and 11c on the front end part side of the rotating lever 11 are It is possible to engage with the to-be-engaged holes 12b1 and 12b1 on the front end side, and the resin band 2 can be more securely tightened, and workability can be improved.
<Configuration of base portion 12>

  As shown in FIGS. 9 to 11, the base portion 12 is a member between the rotation lever 11 and the rotation shaft support portions 12 a 1 and 12 a 2 that rotatably support the rotation shaft portions 11 b 1 and 11 b 2 of the rotation lever 11. Locked portions 12b and 12b to which the locking portions 11c and 11c are locked, a band locking hole 12c to which the other end of the resin band 2 is locked, a winding portion rotating recess 12d, and a band bending clamping convex It has a portion 12e and a state switching convex portion 12f.

  The rotation shaft support portions 12a1 and 12a2 are provided with rear side walls erected from both rear sides of the base portion 12, and the rotation shaft portions 11b1 and 11b2 protruding from both sides of the rotation lever 11 can rotate. And guide groove portions 12a12 and 12a22 for guiding the rotation shaft portions 11b1 and 11b2 to the bearing holes 12a11 and 12a21, respectively.

  As described above, in order to prevent the turning lever 11 from being attached to the base portion 12 in the wrong direction, the outer diameters of the turning shaft portions 11b1 and 11b2 of the turning lever 11 are changed. The inner diameters of the bearing holes 12a11 and 12a21 of the rotation shaft support portions 12a1 and 12a2 and the groove widths of the guide groove portions 12a12 and 12a22 are also changed according to the outer diameters of the rotation shaft portions 11b1 and 11b2.

  The locked portions 12b and 12b are provided with a front side wall standing upright from both front sides of the base portion 12, and the front side wall has a rotation as shown in FIGS. 17 (a) and 17 (b). Locking holes 12b1 and 12b1 that the locking portions 11c and 11c are locked with a cross-sectional shape similar to the cross-sectional shape of the locking portions 11c and 11c of the moving lever 11, and a rotating lever to the locked holes 12b1 and 12b1 11 are provided with inclined portions 12b2 and 12b2 for guiding the engaging portions, which are inclined so as to guide the engaging portions 11c and 11c.

  In the locked holes 12b1 and 12b1, as shown in FIG. 17B, which will be described later, the inclined surface portions to be locked that match the inclination angles of the engaging inclined surfaces 11c1 and 11c1 of the engaging portions 11c and 11c, respectively. 12b11, 12b11 and horizontal plane portions 12b12, 12b12 that are substantially horizontal and not inclined.

  The band locking hole 12c is a hole for fastening the other end of the resin band 2, and the width in the horizontal and vertical directions is slightly larger than the width in the horizontal and vertical directions of the cross section of the resin band 2, so that the resin band 2 can be smoothly smoothed. The size that can be inserted is secured.

  The winding portion rotating recess 12d forms a gap with the band winding portion 11a so as to allow rotation of the band winding portion 11a around which the resin band 2 is wound, and the band winding portion 11a. The band winding portion 11a around which the resin band 2 is wound is formed in a substantially cross-sectional curved shape so that the band winding portion 11a around which the resin band 2 is wound can be rotated from the fully open state to the locked (closed) state. ing.

  The band bending clamping convex portion 12e is a convex portion provided on the band exit side of the winding portion rotating concave portion 12d. As shown in FIGS. When closed and locked, the main bridge portion protrudes into the first central opening portion 11e1 between the main bridge portion 11f1 and the band winding portion 11a in the central opening portion 11e of the turning lever 11. The resin band 2 is clamped while being bent between 11f1 and the band winding portion 11a.

  Here, on the band entrance side surface of the band bending clamping convex portion 12e, that is, on the band exit side of the winding portion rotating concave portion 12d, the first band winding portion provided with the concave and convex portions 11a21 in the band winding portion 11a. A base-side step portion 12e1 is formed to sandwich the resin band 2 with a step portion provided on the 11a2 side.

  The state switching convex portion 12f is a convex portion provided at the rear end portion of the base portion 12 so as to face the band bending clamping convex portion 12e, and rotates the rotating lever 11 attached to the base portion 12. When the rotating lever 11 is engaged, it engages with the engaging end 11a34 spaced from the band insertion hole 11a1 in the band pulling portion 11a31 of the band winding portion 11a of the rotating lever 11 to temporarily fix the resin lever 2 in the wide open state. This is a part for switching the temporarily fixed state or the like to be performed.

  That is, when the state switching convex portion 12f is located on the side of the band pulling portion 11a31 with the engaging end portion 11a34 of the rotating lever 11 as a boundary portion, the side surface on the band entrance side has the rotating lever 11 on the base portion 12. On the other hand, it keeps a wide open state.

  On the other hand, from the wide open state where the state switching convex portion 12f is located on the band pulling portion 11a31 side of the rotation lever 11, the rotation lever 11 is rotated in the closing direction, and the engagement end portion 11a34 of the rotation lever 11 is engaged. Is moved over the state switching convex portion 12f and moved to the opposite side of the band pulling portion 11a31, the end portion 11a22 on the band exit side of the first band winding portion 11a2 of the rotating lever 11 and the band bending clamping of the base portion 12 The resin band 2 is sandwiched between the convex portion 12e and the resin band 2 is temporarily fixed.

<How to use the band fastener 1>
Next, the usage method of this band fastener 1 is demonstrated with reference to FIGS.

  First, as shown in FIGS. 12A and 12B, the resin band 2 with the other end of the resin band 2 held on the side surface of the utility pole 3 with the other end of the resin band 2 locked to the base portion 12. One end of the power pole 3 is made to make a round along the peripheral surface of the utility pole 3 and then inserted from the band entrance side of the band insertion hole 11a1 of the band winding portion 11a of the rotating lever 11 in the wide open state toward the surface of the base portion 12. .

  At that time, as shown in FIGS. 12A and 12B, the band entrance side end portion 11a23 of the first band winding portion 11a2 rotates more than the band tension portion 11a31 of the second band winding portion 11a3. Since it protrudes toward the tip end side of the lever 11, when the tip end portion of the resin band 2 comes into contact with the curved surface of the band pulling portion 11a31, the inlet inner side surface of the band inlet side end portion 11a23 of the first band winding portion 11a2; That is, it comes into contact with the inner surface of the band entrance side 11a11 in the band insertion hole 11a1 and guides it reliably and quickly into the band insertion hole 11a1, thereby improving the workability of the band insertion work.

  Then, as shown in FIGS. 13A and 13B, one end of the resin band 2 is inserted into the band insertion hole 11a1 of the band winding portion 11a of the rotating lever 11, and the tip end portion thereof has a predetermined length. After projecting, the turning lever 11 is turned in the arrow α direction from the wide open state shown in FIG.

  In addition, in the fully open state of the rotation lever 11 in which one end of the resin band 2 is passed through the band insertion hole 11a1 of the band winding portion 11a of the rotation lever 11, as shown in FIGS. The state switching convex portion 12f is engaged with the engaging end portion 11a34 of the rotating lever 11 and is positioned on the band pulling portion 11a31 side, and holds the rotating lever 11 in the wide open state.

  For this reason, in the band fastener of the present embodiment, the rotating lever 11 and the base portion 12 are stabilized in the wide open state in which the rotating lever 11 is largely opened with respect to the base portion 12. Can be improved.

  As a result, when the rotation lever 11 is opened to the base portion 12 and the resin band 12 is passed through the band insertion hole 11a1, the state switching convex portion 12f and the band tension portion 11a31 of the band winding portion 11a of the moving lever 11 are provided. Therefore, the operator can easily insert the band.

  Next, as shown in FIGS. 14A and 14B, when the rotation lever 11 is rotated about 60 degrees from the wide open state, the state switching convex portion 12 f is positioned on the band tension portion 11 a 31 side of the rotation lever 11. From the wide open state, the engaging end portion 11a34 of the rotating lever 11 presses the state switching convex portion 12f to push and bend the state switching convex portion 12f to get over the state switching convex portion 12f, and the band tension portion 11a31. Move to the other side.

  Then, as shown in FIGS. 14 (a) and 14 (b), the band exit-side end portion 11 a 22 of the first band winding portion 11 a 2 of the rotation lever 11 and the band bending clamping convex portion 12 e of the base portion 12. The resin band 2 is sandwiched between them, and the resin band 2 is temporarily fixed.

  Further, in the temporarily fixed state of the resin band 2, since the engaging end portion 11a34 of the rotation lever 11 gets over the state switching convex portion 12f, the opening direction to the rotation lever 11 by the tensile force of the resin band 2, That is, even if a force acts in the returning direction, the rotating lever 11 will not open unless a tensile force of a predetermined value or more acts.

  As a result, as compared with the prior art in which the resin band 2 does not have a temporary fixing function, the band fastener 1 of the present embodiment can temporarily fix the resin band 2 and temporarily prevent the turning lever 11 from returning. Since it has a stop function, the resin band 2 can be temporarily fixed to release the turning lever 11 to change the height of the resin band 2, or the opening of the turning lever 11 again to tighten the resin band 2 again. In this respect, workability can be improved.

  Then, when the rotation lever 11 is further rotated from the temporarily fixed state of the resin band 2 and the rotation lever 11 shown in FIGS. 14A and 14B, the resin band 2 is the band of the second band winding portion 11a3. It is pulled while being wound around the tension portion 11a31, and the tensile force gradually increases.

  Here, the band tension portion 11a31 is formed in a curved shape in which the center portion is recessed toward the rotation center side of the rotation shaft portions 11b1 and 11b2 from both sides in the width direction. The central portion turns around the band winding portion 11a with a shorter radius than both sides thereof. Therefore, although the tensile force acts strongly on both sides in the width direction of the resin band 2 pulled in sliding contact with the band tension portion 11a31, the tensile force on both sides in the width direction of the resin band 2 does not act on both sides. Even a band that hardly stretches can be wound and fixed on an object such as the utility pole 3 without enlarging the entire band fastener 1 and without requiring excessive force.

  Then, as shown in FIGS. 15 (a) and 15 (b), the rotating lever 11 is further rotated from the temporarily fixed state shown in FIGS. 14 (a) and 14 (b), and the tensile force of the resin band 2 is increased. When the locking portions 11 c and 11 c at the tip of the rotating lever 11 are locked in the locked holes 12 b 1 of the base portion 12, the rotating lever 11 is locked (closed) to the base portion 12.

  In the locked (closed) state, as shown in FIGS. 15A and 15B, the resin band 2 has the maximum amount of winding around the band winding portion 11a, and the band tension portion 11a31 that pulls the resin band 2 is used. Since the base portion 12 moves from the rear end side to the front end side, the tensile force applied to the resin band 2 is maximized, and the resin band 2 can be securely fastened to the utility pole 3.

<Effect of Band Fastener 1 of Embodiment>
As described above, in the band fastener 1 of the present embodiment, the band winding portion 11a of the rotation lever 11 has the band insertion hole 11a1, the band tension portion 11a31, and the longitudinal direction of the resin band 2. When the resin band 2 is passed through the band insertion hole 11a1 and the rotation lever 11 is rotated in order to provide the concave and convex portions 11a21b and the convex and concave portions 11a21a extending in parallel at a predetermined interval, The resin band 2 is pulled by the band tension part 11a31, and the tensile force applied to the resin band 2 is gradually increased, so that the resin band 2 is pressed against the ridges 11a21b of the band winding part 11a.

  Therefore, as shown in FIG. 16 (b), the convex strip portion 11a21a of the concave and convex strip portion 11a21 bites into the resin member 2a of the resin band 2, and presses the resin member 2a against the core wire 2b accommodated therein, thereby the resin member 2a. Firmly clamps or bonds the core wire 2b.

  As a result, even if a tensile force is applied to the resin band 2 by the band winding portion 11a or the band tension portion 11a31 of the rotating lever 11, the resin member 2a around the core wire 2b is broken and the resin member 2a is separated from the core wire 2b. Since it becomes difficult to perform the band tightening operation again, the workability can be improved.

  Further, in the band fastener 1 of the present embodiment, the band entrance side end portion 11a23 of the first band winding portion 11a2 is provided with the band tension portion 11a31 as shown in FIGS. 7 (a) and 7 (b). The second band winding portion 11a3 is formed so as to protrude from the band entrance side end portion 11a33 toward the distal end portion side of the rotating lever 11.

  Therefore, when inserting one end of the resin band 2 from the band entrance side 11a11 of the band insertion hole 11a1 of the band winding portion 11a of the rotation lever 11 as shown in FIGS. 12 (a) and 12 (b), When the tip end comes into contact with the band pulling portion 11a31, the tip end portion of the resin band 2 is guided to the band inlet side 11a11 of the band insertion hole 11a1, so that it can be reliably and easily inserted into the band inlet side 11a11 of the band insertion hole 11a1. In this respect, workability can be improved.

  Further, in the band fastener 1 of the embodiment, as shown in FIGS. 13A and 13B, the band outlet side end portion 11a22 of the first band winding portion 11a2 in which the concave and convex portions 11a21 are formed is The band entrance side end portion 11a23 of the 1 band winding portion 11a2 and the band exit side end portion 11a32 and the band entrance side end portion 11a33 of the second band winding portion 11a3 are formed at an acute angle.

  Therefore, even if one end of the resin band 2 is inserted into the band insertion hole 11a1 of the band winding part 11a and is rotated, the resin band 2 is large at the band outlet side end part 11a22 of the first band winding part 11a2. Since it bends at an acute angle and is wound around the band winding portion 11a, the resin band 2 can be reliably secured simply by inserting the resin band 2 into the band insertion hole 11a1 and rotating the rotation lever 11 in the locking direction. It can be tightened and workability can be improved.

  Further, in the band fastener 1 of the embodiment, the base portion 12 is formed so as to be recessed so as to allow the rotation of the band winding portion 11a around which the resin band 2 is wound, and with the band winding portion 11a. While a winding portion rotating recess 12d that forms a gap therebetween is provided, the rotating lever 11 has a band winding on the front end portion of the rotating lever 11 and the rear end portion side of the rotating lever 11. A central opening 11e is formed between the central portion 11a and a main bridge portion 11f1 connected to the left and right side surfaces is formed in the central opening 11e. On the band exit side of 12d, it protrudes into the first central opening portion 11e1 between the main bridge portion 11f1 and the band winding portion 11a in the central opening portion 11e, and between the main bridge portion 11f1 and the band winding portion 11a. With resin Bending the band to sandwich while bending the command 2 is provided with a clamping protrusion 12e.

  Therefore, when the rotation lever 12 is closed and locked (closed), the resin band 2 is bent and clamped between the band bending clamping convex portion 12e, the main bridge portion 11f1 and the band winding portion 11a. Therefore, the resin band 2 can be tightened more reliably, and workability can be further improved in this respect.

  Further, in the band fastener 1 of the embodiment, the base side step portion 12e1 is provided on the band entrance side surface of the band bending clamping convex portion 12e, while the rotating lever 12 is closed and locked (closed). In this case, a lever-side step portion 11a24 is formed in the first band winding portion 11a2 that faces the base-side step portion 12e1 of the band-bending sandwiching convex portion 12e.

  Therefore, when the rotating lever 12 is closed and locked (closed), the base side step portion 12e1 of the band bending clamping convex portion 12e and the lever side step portion 11a24 of the first band winding portion 11a2 Since the resin band 2 is clamped while being bent, the resin band 2 can be further securely tightened, and the workability can be further improved in this respect.

  In the band fastener 1 of the embodiment, the engagement end of the second band winding portion 11a3 is provided at the rear end portion of the base portion 12 when the turning lever 11 attached to the base portion 12 is rotated. When the state switching convex portion 12f that engages with the portion 11a34 is provided and the state switching convex portion 12f is located on the side of the band pulling portion 11a31, the rotation lever 11 is greatly opened with respect to the base portion 12. While maintaining the state, when the engaging lever 11a34 gets over the state switching convex portion 12f by rotating in the direction in which the rotating lever 11 is closed from the wide open state, the band exit side of the first band winding portion 11a2 The resin band 2 is temporarily fixed by clamping the resin band 2 between the end portion 11a22 and the band bending holding convex portion 12e of the base portion 12.

  Therefore, compared with the prior art in which the resin band 2 does not have a temporary fixing function, the height of the resin band 2 can be changed by releasing the hand from the rotating lever 11 in the temporarily fixed state of the resin band 2, or rotating again. It is possible to open the moving lever 11 and fasten the resin band 2 again, and the workability can be improved also in this respect.

  Further, the state switching convex portion 12f rotates the rotating lever 11 around which the resin band 2 is wound, and the engaging portions 11c and 11c on the distal end side of the rotating lever 11 are respectively engaged portions 12b of the base portion 12. , 12b, when in the locked state, as shown in FIGS. 15 (a) and 15 (b), resin is formed between the band insertion hole 11a1 and the band outlet side end 11a22 of the band winding portion 11a. Since the band 2 is clamped, the resin band 2 can be further securely tightened.

  Further, in the band fastener 1 of the embodiment, the band tension part 11a31 is formed in a shape in which the center part is recessed toward the rotation center side of the rotation shaft parts 11b1 and 11b2 than both sides in the width direction. The band tension portion 11a31 is in sliding contact with the resin band 2 and pulls the resin band 2 toward the tip end side of the rotating lever 11, and the central portion in the width direction of the resin band 2 has a shorter radius than both sides of the band winding portion 11a. Will turn around.

  Therefore, although the tensile force acts strongly on both sides in the width direction of the resin band 2 pulled in sliding contact with the band tension portion 11a31, the tensile force on both sides in the width direction of the resin band 2 does not act on both sides. Even a band that hardly stretches can be wound and fixed on an object such as the utility pole 3 without enlarging the entire band fastener 1 and without requiring excessive force.

  In the description of the above embodiment, the tongue piece portion 11d is provided on the distal end side of the rotating lever 11, but the present invention is not limited to this, and the tongue piece portion 11d may be omitted.

DESCRIPTION OF SYMBOLS 1 Band clamp 11 Turning lever 11a Band winding part 11a1 Band insertion hole 11a2 1st band winding part 11a21 Concavity and convexity part 11a21a Convex part 11a21b Concave part 11a22 Band exit side end part 11a23 Band entrance side end part 11a24 Lever side step portion 11a3 Second band winding portion 11a31 Band tension portion 11a32 Band outlet side end portion 11a33 Band inlet side end portion 11a34 Engaging end portion 11b1, 11b2 Rotating shaft portion 11c, 11c Locking portion 11c1, 11c1 Locking 11c2, 11c2 Guide slopes 11d Tongue piece 11e Central opening 11e1 First central opening 11e2 Second central opening 11e3 Third central opening 11f1 Main bridge part 11f2 Sub bridge part 11g Swelling part 12 Base Part 12a1, 12a2 Rotating shaft Holding portion 12a11, 12a21 Bearing hole 12a12, 12a22 Guide groove portion 12b, 12b Locked portion 12b1, 12b1 Locked hole 12b11, 12b11 Locked slope portion 12b12, 12b12 Horizontal surface portion 12b2, 12b2 Locking portion guide slope surface 12c Band locking hole 12d Winding part turning recess 12e Band bending clamping convex part 12e1 Base side step part 12f State switching convex part 12g Leg part 2 Resin band 2a Resin member 2b Core wire 3 Electric pole (object)

Claims (8)

A rotation lever that rotates while pulling a resin band containing a plurality of core wires in a resin member, and a base portion that rotates and locks the rotation lever, and the resin is applied to an object such as a utility pole. A band fastener for tightening and attaching the band,
The pivot lever is
While a locking portion is provided on the distal end side of the rotating lever, a band winding portion and a rotating shaft portion are provided on the proximal end side of the rotating lever.
In the band winding part,
A band insertion hole through which one end of the resin band passes from the distal end side of the rotating lever;
When the rotation lever is rotated from the open state to the locked state, the resin band is wound around the one end side of the resin band. A band tension part for applying a tensile force to the resin band by pulling;
On the other hand, a plurality of recesses and protrusions extending in parallel to the longitudinal direction of the resin band extending in parallel at a predetermined interval are provided,
In the base part,
A band locking portion to which the other end of the resin band is locked;
A rotation shaft support portion that rotatably supports the rotation shaft portion of the rotation lever;
A locked portion to which the locking portion of the rotating lever is locked is provided,
An end portion of the band winding portion on the band entrance side of the band insertion hole, which is opposite to the band tension portion, is closer to the distal end side of the rotating lever than the end portion of the band tension portion. Band fastener characterized by protruding to The band fastener according to claim 1,
In the band winding portion, the upper side in the wide open state of the rotating lever is the first band winding portion through the band insertion hole, and the lower side in the wide open state of the rotating lever is the second band winding portion, While providing the uneven strip on the outer peripheral surface of the first band winding portion,
An end portion on the band exit side of the band insertion hole in the band winding portion and an end portion on the first band winding portion side are end portions on the band exit side of the band insertion hole and the second end. It is formed at an acute angle with respect to the end on the band winding portion side and the end on the first band winding portion side and the second band winding portion side on the band entrance side of the band insertion hole. And band fastener. The band fastener according to claim 2 ,
The base portion further includes
A concave part for winding part that forms a gap between the band winding part is formed to be recessed so as to allow rotation of the band winding part around which the resin band is wound,
The rotating lever further includes
A central opening is formed between the distal end side of the rotating lever and the band winding portion, and a main bridge portion connected to the left and right side surfaces is formed in the central opening.
The main bridge portion protrudes into the first central opening portion between the main bridge portion and the band winding portion in the central opening portion on the band outlet side of the winding portion turning recess in the base portion. And a band bending clamping convex portion for clamping the resin band while bending it between the band winding portion and the band winding portion . The band fastener according to claim 3 ,
On the concave side for turning the winding part in the convex part for band bending clamping, a base side step part is formed,
When the pivoting lever is pivoted so that the locking part is locked to the locked part of the base part, it faces the base side step part of the band bending clamping convex part. The band winding portion is formed with a lever side step portion,
A band fastener , wherein the resin band is clamped and bent between the base side stepped portion and the lever side stepped portion when the locked state is reached . The band fastener according to claim 3 or claim 4,
At the rear end of the base part,
Provided is a state switching convex portion that engages with an engagement end portion that is separated from the band insertion hole in the band tension portion of the band winding portion when the rotating lever mounted on the base portion is rotated. And
When the state switching convex portion is located on the band pulling portion side, the rotating lever maintains a wide open state with the base portion being largely opened, while the rotating lever is closed from the wide open state. Rotating and the engaging end moves over the state switching convex portion, the band exit end of the band insertion hole in the band winding portion and the band bending clamping convex of the base portion A band fastening tool, wherein the resin band is temporarily fixed by sandwiching the resin band with a portion . The band fastener according to claim 5,
The state switching convex portion is:
When the locking portion by rotating the rotating lever wound before Symbol resin band enters a locked state for locking the engaged portion of the base portion, the in the band winding unit A band fastener , wherein a resin band is sandwiched between an end portion of the band insertion hole on the band outlet side and an end portion on the first band winding portion side . A rotation lever that rotates while pulling a resin band containing a plurality of core wires in a resin member, and a base portion that rotates and locks the rotation lever, and the resin is applied to an object such as a utility pole. A band fastener for tightening and attaching the band,
The pivot lever is
While a locking portion is provided on the distal end side of the rotating lever, a band winding portion and a rotating shaft portion are provided on the proximal end side of the rotating lever.
In the band winding part,
A band insertion hole through which one end of the resin band passes from the distal end side of the rotating lever;
When the rotation lever is rotated from the open state to the locked state, the resin band is wound around the one end side of the resin band. While being provided with a band tension part that applies a tensile force to the resin band by pulling,
In the base part,
A band locking portion to which the other end of the resin band is locked;
A rotation shaft support portion that rotatably supports the rotation shaft portion of the rotation lever;
A locked portion to which the locking portion of the rotating lever is locked is provided,
An end portion of the band winding portion on the band entrance side of the band insertion hole, which is opposite to the band tension portion, is closer to the distal end side of the rotating lever than the end portion of the band tension portion. Band fastener characterized by protruding to In the band clamp according to any one of claims 1 to 7,
The band tensioner is characterized in that the band tension part is formed in a shape in which the center part is recessed toward the rotation center side of the rotation shaft part from both sides in the width direction.

Images